iwlwifi: renaming last_used and first_empty
This patch renames queue pointers to write_ptr and read_ptr
instead of first_empty and last_used. This is closer to technical
terminology we everyday use
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 7ff8f72..d7e181f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -1749,14 +1749,14 @@
}
/**
- * iwl_hw_txq_free_tfd - Free one TFD, those at index [txq->q.last_used]
+ * iwl_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr]
*
* Does NOT advance any indexes
*/
int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
{
struct iwl_tfd_frame *bd_tmp = (struct iwl_tfd_frame *)&txq->bd[0];
- struct iwl_tfd_frame *bd = &bd_tmp[txq->q.last_used];
+ struct iwl_tfd_frame *bd = &bd_tmp[txq->q.read_ptr];
struct pci_dev *dev = priv->pci_dev;
int i;
int counter = 0;
@@ -1796,11 +1796,11 @@
IWL_GET_BITS(bd->pa[index], tb1_len),
PCI_DMA_TODEVICE);
- if (txq->txb[txq->q.last_used].skb[i]) {
- struct sk_buff *skb = txq->txb[txq->q.last_used].skb[i];
+ if (txq->txb[txq->q.read_ptr].skb[i]) {
+ struct sk_buff *skb = txq->txb[txq->q.read_ptr].skb[i];
dev_kfree_skb(skb);
- txq->txb[txq->q.last_used].skb[i] = NULL;
+ txq->txb[txq->q.read_ptr].skb[i] = NULL;
}
}
return 0;
@@ -2776,11 +2776,11 @@
len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
- tfd_offset[txq->q.first_empty], byte_cnt, len);
+ tfd_offset[txq->q.write_ptr], byte_cnt, len);
- if (txq->q.first_empty < IWL4965_MAX_WIN_SIZE)
+ if (txq->q.write_ptr < IWL4965_MAX_WIN_SIZE)
IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
- tfd_offset[IWL4965_QUEUE_SIZE + txq->q.first_empty],
+ tfd_offset[IWL4965_QUEUE_SIZE + txq->q.write_ptr],
byte_cnt, len);
return 0;
@@ -4134,7 +4134,7 @@
*/
iwl4965_tx_status_reply_compressed_ba(priv, agg, ba_resp);
/* releases all the TFDs until the SSN */
- if (txq->q.last_used != (ba_resp_scd_ssn & 0xff))
+ if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff))
iwl_tx_queue_reclaim(priv, ba_resp_scd_flow, index);
}
@@ -4205,8 +4205,8 @@
iwl_set_bits_restricted_reg(priv, SCD_QUEUECHAIN_SEL, (1<<txq_id));
- priv->txq[txq_id].q.last_used = (ssn_idx & 0xff);
- priv->txq[txq_id].q.first_empty = (ssn_idx & 0xff);
+ priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
+ priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
/* supposes that ssn_idx is valid (!= 0xFFF) */
iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
@@ -4257,8 +4257,8 @@
iwl_clear_bits_restricted_reg(priv, SCD_QUEUECHAIN_SEL, (1 << txq_id));
- priv->txq[txq_id].q.last_used = (ssn_idx & 0xff);
- priv->txq[txq_id].q.first_empty = (ssn_idx & 0xff);
+ priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
+ priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
/* supposes that ssn_idx is valid (!= 0xFFF) */
iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);